ZIP 21837 recorded 50 fire and hazmat incidents in 2025, 147 across 2021–2025. Primary county: Wicomico County, MD. FEMA NRI rates wildfire risk here as Very High.
147 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 9 | |
| 2022 | 25 | |
| 2023 | 37 | |
| 2024 | 26 | |
| 2025 | 50 |
Jan peaks. Apr dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 21837 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 37 | 25.2% | |
| 2 | Passenger vehicle fire | 10 | 6.8% | |
| 3 | Brush, or brush and grass mixture fire | 10 | 6.8% | |
| 4 | Power line down | 10 | 6.8% | |
| 5 | Authorized controlled burning | 10 | 6.8% |
For the 15 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 21837 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 10 | 26.3% | |
| 2 | Undetermined | 9 | 23.7% | |
| 3 | Wildland, woods | 6 | 15.8% | |
| 4 | Cooking area, kitchen | 4 | 10.5% | |
| 5 | Storage area, other | 2 | 5.3% | |
| 6 | Other | 1 | 2.6% | |
| 7 | Storage room, area, tank, or bin | 1 | 2.6% | |
| 8 | Shipping/receiving area; loading area, dock or bay | 1 | 2.6% | |
| 9 | All other areas | 4 | 10.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 29 | 76.3% | |
| 2 | Heat source: other | 4 | 10.5% | |
| 3 | Chemical reaction | 2 | 5.3% | |
| 4 | Flying brand, ember, spark | 2 | 5.3% | |
| 5 | Fireworks | 1 | 2.6% |
Largest single-incident losses in ZIP 21837 across 2021–2025. These 8 fires alone account for 144% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,000,000 | Building fires | 2025 | Major |
| 2 | $350,000 | Building fires | 2023 | Major |
| 3 | $80,000 | Building fires | 2023 | Significant |
| 4 | $60,000 | Road freight or transport vehicle fire | 2023 | Significant |
| 5 | $50,000 | Building fires | 2025 | Significant |
| 6 | $50,000 | Passenger vehicle fire | 2025 | Significant |
| 7 | $20,000 | Passenger vehicle fire | 2023 | Significant |
| 8 | $20,000 | Passenger vehicle fire | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 21837.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Mardela Springs | 65 | |
| 2 | Willards | 2 |
The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.
NFIRS reports each fire incident with a 5-digit address ZIP. We aggregate those rows directly to produce ZIP-level totals — 147 incidents in this ZIP across 2021–2025. Building-fire breakdowns (Area of Origin, Heat Source, ignition cause) only count fires investigators classified beyond the basic incident report. Because NFIRS reporting is voluntary, totals are a strong indicator rather than a complete census.